@charset "utf-8";
/* CSS Document */

/*root根伪类 为自定义css属性 方便我们重复使用同一个属性 自定义属性使用var()进行调用*/
:root{
	/*背景颜色*/
	--white: #e9e9e9;
	--gray: #333;
	--blue: orange;
	--lightblue: #008997;    
	/* 外边框圆角属性 */
	--button-radius: 5px;
	
	--max-width: 758px;
	--max-height: 420px;
	/*字体样式*/
	font-size: 16px;
	font-family: -apple-system, BlinkMacSystemFont, 'Segoe Ui', Roboto, 'Helvatica Neue', sans-serif;
}

body{
	background-image: url("../images/people-in-couch-1024248.jpg");
	background-attachment: fixed;
	background-position: center;
	background-repeat: no-repeat;
	background-size: cover;
	display: grid;
	height: 100vh;
	place-items: center;
}

header{

	height: 10px; 
	display: grid; 
	padding: 0 40px; 
    grid-template-columns: 1fr 2fr;
    align-items: center; 
	position: relative; 
	z-index: 200; 
}

header .logo {
	font-size: 24px; 
	font-weight: 600; 
	text-align: left;
}

header .logo img{
	width: 24px;
	height: auto;
	vertical-align: middle;
}

header nav{
	justify-self: end;
}
header nav i{
	color: var(--text-color-lightest);
}
header nav a{
	color: var(--text-color-lightest);
	text-decoration: none;
	margin: 0 24px;
}


/* 注册登陆框文本样式 */
.form_title{
	font-weight: 300;
	font-size: 30px;
	margin: 0;
	margin-bottom: 1.25rem;
}

.link{
	color: var(--gray);
	font-size: 0.9rem;
	margin: 1.5rem 0;
	text-decoration: none;
}

/*设置登录框*/

.container{
	background-color: var(--white);
	border-radius: var(--button-radius);
	box-shadow: 0 0.9rem 1.7rem rgba(0, 0, 0, 0.5);
	height: var(--max-height);
	max-width: var(--max-width);
	overflow: hidden;
	position: relative;
	width: 100%;
}

.container_form{
	height: 100%;
	position: absolute;
	top: 0;
	transition: all 0.6s ease-in-out;
}

.container--signin{
	left: 0;
	width: 50%;
	z-index: 2;
}

.container.right-panel-active .container--signin{
	transform: translateX(100%);
}

.container--signup{
	left: 0;
	opacity: 0;
	width: 50%;
	z-index: 1;
}

.container.right-panel-active .container--signup{
	animation: show 0.6s;
	opacity: 1;
	transform: translateX(100%);
	z-index: 5;
}

.container_overlay{
	height: 100%;
	left: 50%;
	overflow: hidden;
	position: absolute;
	top: 0;
	transition: transform 0.6s ease-in-out;
	width: 50%;
	z-index: 100;
}

.container.right-panel-active .container_overlay{
	transform: translateX(-100%);
}

.overlay{
    background-color: var(--lightblue);
	background-image: url("../images/people-in-couch-1024248.jpg");
	background-attachment: fixed;
	background-position: center;
	background-repeat: no-repeat;
	background-size: cover;
	height: 100%;
	left: -100%;
	position: relative;
	transform: translateX(0);
	transition: transform 0.6s ease-in-out;
	width: 200%;
}

.container.right-panel-active .overlay{
	transform: translateX(50%);
}

.overlay_panel{
	align-items: center;
	display: flex;
	flex-direction: column;
	height: 100%;
	justify-content: center;
	position: absolute;
	text-align: center;
	top: 0;
	transform: translateX(0);
	transition: transform 0.6s ease-in-out;
	width: 50%;
}

.overlay--left{
	transform: translateX(-20%);
}

.container.right-panel-active .overlay--left{
	transform: translateX(0);
}

.overlay--right{
	right: 0;
	transform: translateX(0);
}

.container.right-panel-active .overlay--right{
	transform: translateX(20%);
}

.btn{
	background-color: var(--blue);
	background-image: linear-gradient(90deg,#f6d365 0%, var(--blue) 74%);
	border-radius: 20px;
	border: 0px;
	color: var(--white);
	cursor: pointer;
	font-size: 0.8rem;
	font-weight: bold;
	letter-spacing: 0.1rem;
	padding: 0.9rem 4rem;
	text-transform: uppercase;
	transition: transform 80ms ease-in;
}

.form > .btn{
	margin-top: 1.5rem;
}

.btn:active{
	transform: scale(0.95);
}

.btn:focus{
	outline: none;
}

.form{
	background-color: var(--white);
	display: flex;
	align-items: center;
	justify-content: center;
	flex-direction: column;
	padding: 0 3rem;
	height: 100%;
	text-align: center;
}

.input{
	background-color: #fff;
	border: 0;
	padding: 0.9rem 0.9rem;
	margin: 0.5rem 0;
	width: 100%;
}

@keyframes show{
	0%,
	49.9%{
		opacity: 0;
		z-index: 1;
	}
	
	50%,
	100%{
		opacity: 1;
		z-index: 5;
	}
}
